There’s an edge to the observable universe—we can only see so far out. That’s because light travels at a finite speed (one light-year per year), so as we look at distant things we’re also ...

The size of the universe is a question that has fascinated humanity for centuries. From ancient astronomers to modern ...

The universe is vast, so vast, in fact, that it seems impossible to imagine an “edge.” But what if the universe does have a boundary? And more importantly… what lies beyond it? In this ...

Is it indeed the result of information that resides at the edge of the universe? “The issue is still unresolved,” says Karsten Danzmann, principal investigator for GEO600. “The noise is ...

Bright flashes of enigmatic radio waves have helped illuminate some of the missing matter in the universe, astronomers say in ...

Don’t forget to pack zillions of tons of snacks! By Randall Munroe The edge of the observable universe is about 270,000,000,000,000,000,000,000 miles away. If you drive at a steady 65 miles per ...

Maybe, maybe not. Here's the thing: The mathematics could support a fourth dimension for our 3D universe to expand into. And we would definitely have an "edge" in this extra dimension, the same ...

Maybe, maybe not. Here's the thing: The mathematics could support a fourth dimension for our 3D universe to expand into. And we would definitely have an "edge" in this extra dimension, the same ...

But this isn’t some magical edge of the universe. Our cosmos keeps going. We just may never know how far. In recent decades, cosmologists have tried to solve this mystery by first determining ...